Finding the Fourth Proportional to 217,752.75, 326,649.74 and 84,643.29
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Solution
The fourth proportional to 217,752.75, 326,649.74 and 84,643.29 is: 126,972.95
Step by Step Solution
- Step 1: Write the proportion equation
217,752.75 : 326,649.74 = 84,643.29 : x - Step 2: Convert to fraction form
217,752.75/326,649.74 = 84,643.29/x - Step 3: Cross multiply
217,752.75x = 326,649.74 × 84,643.29 - Step 4: Simplify right side
217,752.75x = 27,648,708,248.03 - Step 5: Solve for x
x = 27,648,708,248.03/217,752.75 - Step 6: Final answer
x = 126,972.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.